FORCETALLY
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At a glance
Measured figures
206B Jetranger II · including rotors
Single source38 ft 9.5 in (11.824 m) including rotors[source]
Mi-4A · Length
Configuration
| Specification | Bell 206 | Mil Mi-4 |
|---|---|---|
| Type | Multipurpose utility helicopter[source] | Transport helicopter[source] |
| National origin | United States / Canada[source] | Soviet Union[source] |
| Manufacturer | Bell Helicopter[source] | Mil Moscow Helicopter Plant[source] |
| Status | In service[source] | Limited Service; North Korean Air Force[source] |
16.8 m (55 ft 1 in)[source]
Cruise; 206B Jetranger II · at MTOW, 5,000 feet
Single sourceMaximum; 206B Jetranger II · at MTOW (sea level)
Single source122 kn (140 mph, 226 km/h) at MTOW (sea level)[source]
120 kn (140 mph, 220 km/h) at MTOW, 5,000 feet[source]
Maximum; Mi-4A · Maximum speed
Single source185 km/h (115 mph, 100 kn)[source]
206B Jetranger II · 1 × Allison 250-C20 turboshaft engine
Single source1 × Allison 250-C20 turboshaft engine, 400 hp (298 kW)[source]
Mi-4A · 1 × Shvetsov ASh-82V 14-cylinder air-cooled radial piston engine
Single source1 × Shvetsov ASh-82V 14-cylinder air-cooled radial piston engine, 1,250 kW (1,680 hp)[source]
206B Jetranger II · 1,350 ft/min (
Single source1,350 ft/min (6.9 m/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Number built | 7,300[source] | over 4,000 including Z-5s[source] |
|---|
| Manufactured | 1962–2017[source] | 1951–1979[source] |
|---|
| Introduction date | 1967[source] | 1953[source] |
|---|
| First flight | December 8, 1962 (206) January 10, 1966 (206A)[source] | 3 June 1952[source] |
|---|
| Developed from | Bell YOH-4[source] | — |
|---|
| Variants | Bell OH-58 Kiowa Bell 407[source] | — |
|---|
| Developed into | Bell 400 TwinRanger[source] | — |
|---|
| Capacity | 4 passengers[source] | 16 troops or up to 1,600 kg (3,527 lb) of cargo[source] |
|---|
| Fuselage length | 31 ft 2 in (9.50 m)[source] | — |
|---|
| Interior dimensions | 7 ft 2 in (2.18 m) length, by 4 ft 2 in (1.27 m) width, by 4 ft 3 in (1.30 m) height, plus 16 ft 3 (453 L) baggage compartment[source] | — |
|---|
| Main rotor area | 873 sq ft (81.1 m 2 )[source] | 346.4 m 2 (3,729 sq ft)[source] |
|---|
| Blade section | – NACA 0012 mod (11.3%)[source] | — |
|---|
| Maximum speed at 5,000 ft | 116 kn (133 mph; 215 km/h) at MTOW[source] | — |
|---|
| Disk loading | 4 lb/sq ft (20 kg/m 2 )[source] | 41 kg/m 2 (8.4 lb/sq ft)[source] |
|---|
| Power/mass | 0.09 hp/lb (0.15 kW/kg)[source] | 0.21 kW/kg (0.13 hp/lb)[source] |
|---|
| Primary users | — | Soviet Air Force Indian Air Force Polish Air Force Royal Afghan Air Force[source] |
|---|
| Variant | — | Harbin Z-5[source] |
|---|
| Country of origin | — | Soviet Union[source] |
|---|
Maximum take-off; Mi-4A · Max takeoff weight
Single source